The central bank of Norway, Norges Bank, has recently disclosed that it now owns more shares of Plug Power, a hydrogen technology company, signaling a vote of confidence in the company's future. Norges Bank increased its stake to about 88 million shares, equivalent to 8% of the total stock outstanding, up from 26 million shares in the previous quarter. This move by Norges Bank aligns with its interest in sustainability-linked investments, where Plug Power is a notable player. Plug Power specializes in manufacturing fuel cells and electrolyzers that operate on hydrogen to power various vehicles and equipment, contributing to a cleaner energy ecosystem. Hydrogen, as a clean energy source, does not produce carbon dioxide when used, making it a promising solution in the fight against global climate change. However, the development of cost-effective hydrogen technology has been slower than anticipated, reflected in Plug Power's stock performance being down 73% in the past year. Despite this, Norges Bank's investment in Plug Power demonstrates optimism in the potential of hydrogen energy to play a significant role in a sustainable future.